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Fencer Vulns
medium 5.1

CVE-2023-28026 json

Dell BIOS contains an improper input validation vulnerability.

published 2023-06-23 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-31751

cvss
5.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user with administrator privileges may potentially exploit this vulnerability in order to modify a UEFI variable.

Patch / fix

  • dell alienware_area_51m_r1_firmware 1.26.0
  • dell alienware_area_51m_r2_firmware 1.22.0
  • dell alienware_aurora_r11_firmware 1.0.20
  • dell alienware_aurora_r12_firmware 1.1.20
  • dell alienware_aurora_r13_firmware 1.12.0
  • dell alienware_aurora_r15_firmware 1.1.0
  • dell alienware_m15_r2_firmware 1.22.0
  • dell alienware_m15_r3_firmware 1.23.0
  • dell alienware_m15_r4_firmware 1.17.0
  • dell alienware_m15_r6_firmware 1.21.0
  • dell alienware_m15_r7_firmware 1.16.0
  • dell alienware_m16_firmware 1.7.0
  • dell alienware_m17_r2_firmware 1.22.0
  • dell alienware_m17_r3_firmware 1.23.0
  • dell alienware_m17_r4_firmware 1.17.0
  • dell alienware_x14_firmware 1.12.0
  • dell alienware_x15_r1_firmware 1.18.0
  • dell alienware_x15_r2_firmware 1.13.0
  • dell alienware_x17_r1_firmware 1.18.0
  • dell alienware_x17_r2_firmware 1.13.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Dell CPG BIOS

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.